1. A luggage handler pulls a 100kg suitcase up a ramp inclined at 30° above the horizontal by a force F of magnitude 140N that acts parallel to the ramp to the ramp. The coefficient of kinetic friction between the ramp and the incline is u = 0.300. If the suitcase travels 3.80m along the ramp. The work done in joules on the suitcase by the force F is : a) 642 b) 532 c) 456 d) 390 e) 210

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1. A luggage handler pulls a 100kg suitcase up a ramp inclined at 30° above the
horizontal by a force F of magnitude 140N that acts parallel to the ramp to the
ramp. The coefficient of kinetic friction between the ramp and the incline is uk =
0.300. If the suitcase travels 3.80m along the ramp. The work done in joules on
the suitcase by the force F is :
a) 642
b) 532
c) 456
d) 390
e) 210
2. Refer to problem 2, the total work done in joules on the suitcase is:
a) -39
c) -34
b) 532
d) -98
e) 302
3. If the speed of the suitcase is zero at the bottom of the ramp, its speed in m/s
after it has travelled 3.80m along the ramp is
a) 2.5
b) 3.92
c) 2.09
d) 7.05
e) 1.84
Transcribed Image Text:1. A luggage handler pulls a 100kg suitcase up a ramp inclined at 30° above the horizontal by a force F of magnitude 140N that acts parallel to the ramp to the ramp. The coefficient of kinetic friction between the ramp and the incline is uk = 0.300. If the suitcase travels 3.80m along the ramp. The work done in joules on the suitcase by the force F is : a) 642 b) 532 c) 456 d) 390 e) 210 2. Refer to problem 2, the total work done in joules on the suitcase is: a) -39 c) -34 b) 532 d) -98 e) 302 3. If the speed of the suitcase is zero at the bottom of the ramp, its speed in m/s after it has travelled 3.80m along the ramp is a) 2.5 b) 3.92 c) 2.09 d) 7.05 e) 1.84
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